JPS5254356A - Pahse-synchronized variable frequency oscillator - Google Patents

Pahse-synchronized variable frequency oscillator

Info

Publication number
JPS5254356A
JPS5254356A JP50129862A JP12986275A JPS5254356A JP S5254356 A JPS5254356 A JP S5254356A JP 50129862 A JP50129862 A JP 50129862A JP 12986275 A JP12986275 A JP 12986275A JP S5254356 A JPS5254356 A JP S5254356A
Authority
JP
Japan
Prior art keywords
pahse
variable frequency
frequency oscillator
synchronized variable
synchronized
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP50129862A
Other languages
Japanese (ja)
Inventor
Masaaki Hata
Sotaro Wada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP50129862A priority Critical patent/JPS5254356A/en
Priority to IT2850476A priority patent/IT1068782B/en
Priority to DE19762648103 priority patent/DE2648103A1/en
Priority to FR7632564A priority patent/FR2330198A1/en
Publication of JPS5254356A publication Critical patent/JPS5254356A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
    • H03L7/23—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop with pulse counters or frequency dividers

Landscapes

  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

PURPOSE: Two phase synchronizer systems are formed, and a comparison is made between the 1st and 2nd phase synchronizer systems to control frequency, thereby decreasing the number of frequency demultipliers and accelerating the speed of frequency control.
COPYRIGHT: (C)1977,JPO&Japio
JP50129862A 1975-10-30 1975-10-30 Pahse-synchronized variable frequency oscillator Pending JPS5254356A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP50129862A JPS5254356A (en) 1975-10-30 1975-10-30 Pahse-synchronized variable frequency oscillator
IT2850476A IT1068782B (en) 1975-10-30 1976-10-19 VARIABLE FREQUENCY OSCILLATOR APPARATUS
DE19762648103 DE2648103A1 (en) 1975-10-30 1976-10-23 VIBRANT CIRCUIT WITH FREE-VIBRATING AND VARIABLE OSCILLATOR
FR7632564A FR2330198A1 (en) 1975-10-30 1976-10-28 Freely oscillating tunable oscillator - has frequency divider for oscillator output signal, and several detectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50129862A JPS5254356A (en) 1975-10-30 1975-10-30 Pahse-synchronized variable frequency oscillator

Publications (1)

Publication Number Publication Date
JPS5254356A true JPS5254356A (en) 1977-05-02

Family

ID=15020100

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50129862A Pending JPS5254356A (en) 1975-10-30 1975-10-30 Pahse-synchronized variable frequency oscillator

Country Status (4)

Country Link
JP (1) JPS5254356A (en)
DE (1) DE2648103A1 (en)
FR (1) FR2330198A1 (en)
IT (1) IT1068782B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6059822A (en) * 1983-09-13 1985-04-06 Fujitsu Ltd Frequency converting circuit
JPS62141817A (en) * 1985-12-16 1987-06-25 Matsushita Electric Ind Co Ltd Microwave band frequency synthesizer
JPS62141819A (en) * 1985-12-16 1987-06-25 Matsushita Electric Ind Co Ltd Microwave band frequency synthesizer
JPS62141818A (en) * 1985-12-16 1987-06-25 Matsushita Electric Ind Co Ltd Microwave band frequency synthesizer
JPS62141816A (en) * 1985-12-16 1987-06-25 Matsushita Electric Ind Co Ltd Microwave band frequency synthesizer

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2941729A1 (en) * 1979-10-15 1981-05-07 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Oscillator regulating loop e.g. for linearisation - uses comparison of outputs of two frequency to DC signal converters
US4785260A (en) * 1986-03-18 1988-11-15 International Mobile Machines Corporation Frequency synthesizer for broadcast telephone system having multiple assignable frequency channels

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR74213E (en) * 1957-02-14 1961-03-06
FR1383227A (en) * 1962-11-30 1964-12-24 Philips Nv Multi-channel generator
US3319178A (en) * 1965-09-27 1967-05-09 Collins Radio Co Plural loop automatic phase control
FR1596815A (en) * 1967-12-21 1970-06-22
GB1191433A (en) * 1968-01-19 1970-05-13 Gen Electric & English Elect Improvements in or relating to Frequency Synthesisers.
FR2221858A1 (en) * 1973-03-14 1974-10-11 Adret Electronique Wide band VHF and UHF frequency synthesiser - has HF aquisition rate using several oscillators connected in parallel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6059822A (en) * 1983-09-13 1985-04-06 Fujitsu Ltd Frequency converting circuit
JPS62141817A (en) * 1985-12-16 1987-06-25 Matsushita Electric Ind Co Ltd Microwave band frequency synthesizer
JPS62141819A (en) * 1985-12-16 1987-06-25 Matsushita Electric Ind Co Ltd Microwave band frequency synthesizer
JPS62141818A (en) * 1985-12-16 1987-06-25 Matsushita Electric Ind Co Ltd Microwave band frequency synthesizer
JPS62141816A (en) * 1985-12-16 1987-06-25 Matsushita Electric Ind Co Ltd Microwave band frequency synthesizer

Also Published As

Publication number Publication date
IT1068782B (en) 1985-03-21
DE2648103A1 (en) 1977-05-12
FR2330198A1 (en) 1977-05-27

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